6425706858 has 16 divisors (see below), whose sum is σ = 12852786240. Its totient is φ = 2141673536.

The previous prime is 6425706841. The next prime is 6425706863. The reversal of 6425706858 is 8586075246.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6425706858.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9691 + ... + 113777.

It is an arithmetic number, because the mean of its divisors is an integer number (803299140).

Almost surely, 2^6425706858 is an apocalyptic number.

6425706858 is an abundant number, since it is smaller than the sum of its proper divisors (6427079382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6425706858 is a wasteful number, since it uses less digits than its factorization.

6425706858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114381.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The square root of 6425706858 is about 80160.5068472000. The cubic root of 6425706858 is about 1859.1180597428.

The spelling of 6425706858 in words is "six billion, four hundred twenty-five million, seven hundred six thousand, eight hundred fifty-eight".